Security Technology Lead

Our PurposeAt SentinelOne, we are motivated by a strong purpose: to empower those who safeguard our future. As AI transforms how organizations develop, operate, and innovate, the imperative to protect them intensifies. Joining SentinelOne means your contributions will help secure global enterprises, vital infrastructure, and the technologies that will define tomorrow. If you seek meaningful challenges with a tangible, global impact, you will discover your purpose here.About UsSentinelOne stands at the forefront of AI and cybersecurity, pioneering a revolutionary operational model for security. Our AI-native platform integrates protection across endpoints, cloud, identity, data, and AI systems, delivering autonomous detection and response with remarkable speed and clarity. By leveraging real-time analytics, smart automation, and a consolidated data foundation, we minimize distractions, simplify complexities, and empower security teams to focus on what matters most.Our teams consist of builders, problem-solvers, and innovators dedicated to shaping the future of security. If you are excited to tackle challenging problems alongside skilled, mission-driven individuals, we welcome you to help us construct a safer future for humanity.What Are We Looking For?We seek individuals who are insatiably curious and dedicated to continuous learning. AI is revolutionizing every aspect of our business, and we empower every team member, regardless of their role or level, to develop fluency in AI tools and concepts. Those who thrive here are proactive in seeking innovative solutions, experimenting thoughtfully, and applying their insights to achieve superior outcomes.As a Senior Software Engineer, you will be responsible for the complete development process of new agent capabilities, from researching Linux and cloud security technologies to designing detection strategies and deploying them at scale. You will engage with kernel-level components, user-space engines, and cloud-native security features, addressing intricate system engineering challenges.Your contributions will fortify the security of Linux and cloud workloads utilized by hundreds of thousands of users worldwide. We are looking for engineers with expertise in Linux and/or cloud security who can innovate from the ground up and propel scalable capabilities across our offerings.What Will You Do?...

Our MissionAt SentinelOne, our mission is straightforward: empower those who are safeguarding our future. In an era where AI is transforming organizational dynamics, the imperative to protect these entities intensifies. By joining SentinelOne, your contributions will fortify global enterprises, critical infrastructures, and the innovations defining our future. If you seek impactful challenges that yield tangible and worldwide effects, your purpose awaits here.Who We AreSentinelOne operates at the nexus of AI and cybersecurity, leading the charge with an innovative model designed for modern security. Our AI-driven platform consolidates protection across endpoints, cloud environments, identities, data, and AI systems, ensuring autonomous detection and response with precision and speed. By integrating real-time analytics, intelligent automation, and a cohesive data foundation, we mitigate noise, streamline complexities, and enable security teams to concentrate on what genuinely matters.Our workforce comprises builders, problem-solvers, and visionaries dedicated to redefining the future of security. If you are enthusiastic about tackling complex challenges with exceptionally skilled, mission-focused individuals, we welcome you to join us in crafting a safer tomorrow for all.Position OverviewAs a Senior Windows Low Level Engineer specializing in Endpoint Security, you will architect and implement cutting-edge security features for SentinelOne’s Windows endpoint protection platform, functioning across both user-mode and kernel-mode environments. You will construct and enhance mission-critical components such as anti-tampering measures, network sensors, and agent infrastructure while addressing intricate performance and stability challenges at a large scale. By delving into Windows internals and diagnosing profound system issues, you will collaborate with distributed engineering teams to deliver high-impact security functionalities safeguarding millions of devices globally.

Join a cutting-edge tech company that is revolutionizing the data storage landscape! At PureStorage, you will be at the forefront of innovation, collaborating with some of the brightest minds in the industry. If you're ready to embrace a world of limitless opportunities and make a significant impact, we invite you to be part of our journey.THE ROLEAs a member of the FlashArray team, you will contribute to the development of the most advanced, high-performance, and reliable product portfolio tailored for mission-critical applications. Though we provide a hardware storage array, our engineering team is predominantly composed of software engineers. Our customers value FlashArray for its ease of management, continuous upgrades, and the ability to leverage cutting-edge technology without downtime. In this role, you will focus on enhancing our virtualization ecosystem, working on plugins like vSphere, Veeam, PowerShell, and more to ensure seamless integration with FlashArray.WHAT YOU'LL DODesign and implement innovative features and technologies for high-performance virtualization integrations.Take ownership of FlashArray virtualization plugins from inception to delivery.Analyze and resolve complex challenges across virtualization platforms with a focus on simplicity and scalability.Collaborate with talented peers who inspire and motivate you.Delight customers by enabling smooth integration of FlashArray into their virtualization environments.Grow your knowledge base, whether you're a seasoned expert or just starting out in virtualization, storage, or system software.We primarily operate in an in-office setting, so you will be expected to work from our Prague office in accordance with Pure's policies, except during approved leave or work-related travel.

Veeam Software secures data and AI for over 550,000 customers worldwide, supporting business continuity for organizations of all sizes. Headquartered in Seattle and operating in more than 30 countries, Veeam specializes in data resilience and security posture management. The company helps global brands deploy AI safely and reliably at scale. Role Overview The Staff Security Engineer will design and strengthen the authentication and authorization framework for Veeam Data Cloud (VDC), a cloud-native SaaS platform. This position is based in Prague, Czechia. What You Will Do Evaluate and define the platform’s authorization model Architect and enhance Role-Based Access Control (RBAC) and related security controls Advance security measures that protect access to Veeam Data Cloud About Veeam Software Veeam is recognized for its commitment to data security, resilience, and supporting customers’ safe adoption of new technologies. The company values growth, learning, and meaningful impact for both employees and clients.

Join us in a thrilling journey as we revolutionize the data storage landscape! At Pure Storage, you will engage in groundbreaking technological advancements, work alongside brilliant minds, and contribute significantly to a rapidly evolving industry.If you're eager to embrace the limitless opportunities that come with innovation and leave a lasting impact, we invite you to be part of our team. THE ROLEThe Access Rules team in DX Engineering plays a pivotal role in shaping security and access management at Pure Storage. This dynamic group of engineers designs and maintains systems that govern user, group, and resource interactions across diverse platforms, ensuring secure operations at scale. The team is passionate about building APIs and backend solutions that enforce robust access controls across multiple systems within Pure Storage and the DX organization. They collaborate closely with the Authorization team, product managers, and UI/UX designers to define and enhance the core of Pure’s authorization infrastructure, contributing directly to complex backend services, overseeing feature migrations, and ensuring the reliability of essential access management systems.WHAT YOU'LL DOArchitect Scalable Ecosystems: Design, develop, and maintain high-availability processing services while adhering to stringent security and compliance standards for mission-critical data.Drive Full Lifecycle Innovation: Manage the entire development lifecycle—from experimenting with new technologies to deployment—keeping our platform at the leading edge of the industry.Optimize Engineering Excellence: Champion code quality through unit testing, thorough code reviews, and automated CI/CD pipelines to ensure seamless, continuous delivery.Collaborative Problem Solving: Work with stakeholders to translate complex business needs into elegant technical solutions, focusing on system interoperability and long-term maintainability.WHAT YOU BRINGBackend Mastery: Strong expertise in modern backend languages (such as Python, Java, or Golang) and demonstrated experience in designing and launching intricate software components, with an interest or experience in security.Cloud Native Expertise: Proven experience in building and scaling applications in cloud environments.

Join us at the forefront of technological innovation as we revolutionize the data storage landscape. By joining our team, you will be at the helm of groundbreaking initiatives, collaborating with some of the most brilliant minds in the industry.This is your chance to engage in transformative work that defines the essence of the tech sector. If you are eager to embrace limitless opportunities and make a significant impact, we invite you to apply.THE ROLEEverpure Cloud Azure Native is operational and readily accessible; we have successfully launched our initial service version and are committed to continual improvements each quarter. Our focus is on broadening use cases, penetrating new markets, and enhancing reliability and developer experience.The Foundation team manages a Go-based control-plane service that streamlines how clients utilize enterprise-grade block storage natively within Azure. Our tech stack is modern, incorporating Temporal and other platform services for workflows, automation, and observability. This role involves contributing to a cloud service that is customer-facing, meaning your contributions directly influence how clients deploy, scale, and manage storage within their Azure environments.This is a distinctive opportunity to engage with a core storage service within a leading public cloud, collaborating closely with Microsoft. You will design and enhance APIs and service behaviors that directly impact actual workloads while working in tandem with engineers from both organizations.We prioritize speed without compromising customer experience: maintaining clear API contracts, durable interfaces, comprehensive test automation, and CI/CD practices are integral to our process. If you're passionate about owning services from inception to deployment, tackling real-world challenges in distributed systems within the public cloud, and witnessing your efforts reflected in the experiences of Azure customers, this is the ideal environment for you.

Veeam Software seeks a Senior C# Developer based in Prague, Czechia. The role centers on creating dependable software with C# and .NET, guiding projects from early concept through to delivery. Key responsibilities Design and build software solutions using C# and .NET technologies Take part in planning, development, testing, and deployment activities Support strong standards for performance and reliability at every stage Role overview This position covers the full software development lifecycle. Expect to work closely with others to ensure each phase meets quality expectations, from initial idea to release.

Join Us in Revolutionizing Cloud Networking and Security!Cato Networks is at the forefront of merging enterprise networking and security into a unified, cloud-based service. Founded by industry pioneers and innovators, we are creating a transformative product category recognized by Gartner as 'SASE', projected to grow to $28.5 billion by 2028. This is your chance to embark on a remarkable journey with a company poised to lead the global market in secure cloud platforms.We are looking for a talented Senior Software Engineer to join our innovative team in Prague, Czech Republic. In this pivotal role, you will design and develop cloud-driven networking and security management solutions. Your contributions will directly enhance our product offerings while you work alongside a dynamic scrum team to create high-performance microservices.Key Responsibilities:Software Development: Develop robust, scalable, and secure coding patterns. Contribute to Cato's web application through backend and full-stack development, focusing on microservices designed for near real-time performance.Code Reviews: Maintain high standards through rigorous code reviews, ensuring quality, test coverage, and security.Technical Specifications: Comprehend and document the architecture of connected features, architecting complex end-to-end solutions and providing insightful feedback on specifications.Support/On-Call Rotation: Manage outage incidents and troubleshoot security concerns effectively.Technology Stack:Java, Spring BootAWS (SQS, KMS, DocDB, S3), Microservices, Kubernetes, Docker, Kafka, PostgreSQL, MongoDBGolang, TypeScript, ReactRequirements:Minimum of 5 years in backend development, with strong proficiency in Java and Spring Boot.Demonstrated experience in high-performance environments and benchmark evaluations.Solid understanding of architecture, design, and development of complex web applications.

We are seeking a skilled C# Software Engineer to join our dynamic team at 2ntelekomunikaceas in Prague. In this role, you will be instrumental in designing, developing, and maintaining high-quality software solutions that drive our manufacturing and industrialization efforts. You will collaborate with cross-functional teams to deliver innovative products that meet the needs of our customers.

Veeam Software seeks a Senior C# Developer in Prague to help build and support applications for Microsoft 365. This position involves working with a team of experienced engineers to deliver dependable software solutions. Responsibilities Design, develop, and maintain applications using C# Create and support solutions that integrate with Microsoft 365 Collaborate closely with colleagues to ensure software reliability Requirements Extensive experience in C# development Interest in building software for Microsoft 365 environments Skill in designing and maintaining high-quality applications This role is located in Prague, Czechia.

Wrike is a leading work management platform designed to empower teams and organizations to collaborate effectively, innovate, and excel in their endeavors. By bringing all work into a unified space, Wrike simplifies processes, enhances productivity, and enables individuals to concentrate on their most impactful work. Our Vision: A world where everyone is liberated to engage in their most meaningful work collaboratively. About the Role:As a key member of Wrike’s Security team, you will play a vital role in safeguarding the integrity and trustworthiness of the data housed within our platform. In this senior role, you will take ownership of and enhance the security framework for Wrike’s production, Kubernetes, and GCP environments. You will not only maintain systems but also design a "secure by default" infrastructure that empowers our engineering teams to operate swiftly without sacrificing safety.Your Impact:Ownership of Infrastructure Security: Architect, implement, and refine security measures—including hardening, network segmentation, IAM, and endpoint security—across our entire infrastructure.Strategic Cyber Defense: Set the technical vision for cybersecurity defense, encompassing enterprise posture management, threat detection, and vulnerability management.Collaborative Security Architecture: Collaborate with ITOps, SysOps, DevOps, and XOps to integrate security into the foundation of our architecture and change management processes.SIEM Development: Create and manage our SIEM strategy and its associated infrastructure to ensure proactive monitoring and visibility.Mentorship and Education: Guide and educate engineering teams on secure system design, enhancing the security knowledge across the organization.

About Veeam Software Veeam Software focuses on data and AI trust, helping organizations understand, secure, and strengthen their data and AI systems. The company leads in data resilience and security posture management, working at the intersection of identity, data, security, and AI risk. Headquartered in Seattle and active in more than 30 countries, Veeam protects over 550,000 customers worldwide, supporting business continuity for many major brands. Role Overview The Senior Data Security & Privacy Engineer position is based in Prague, Czechia. This role centers on privacy-by-design and data protection engineering for the Veeam Data Cloud (VDC) data plane. The engineer will play a key part in building and applying advanced security frameworks that protect the integrity and confidentiality of customer data.

Veeam Software seeks a Middle/Senior C# Developer to join the team in Prague, Czechia. This position centers on developing and maintaining applications that help customers manage and protect their data. Key responsibilities Design and build high-performance software using C# Maintain and improve existing applications Work closely with team members to deliver dependable solutions Share ideas and technical knowledge on ongoing projects Requirements Proven experience in C# development Understanding of software design principles and maintenance Interest in addressing challenges in data management and protection This Prague-based role offers the chance to collaborate with experienced colleagues and contribute to products used by customers around the world.

Join our dynamic team at 2ntelekomunikaceas as an Embedded C/C++ Developer. In this role, you will leverage your expertise in embedded systems to design and implement innovative software solutions that drive our products forward. You will collaborate closely with cross-functional teams in a fast-paced environment and contribute to the development of cutting-edge telecommunications technology.

Join us at the forefront of technology as we revolutionize the data storage industry. At Pure Storage, you will engage in groundbreaking work, collaborate with the most brilliant minds in the field, and contribute to innovative solutions that make a significant impact.Embrace the opportunity to shape the future and leave a lasting imprint in the tech world. If you're ready to unlock a world of possibilities, we invite you to be part of our journey.THE ROLEIn the position of Senior Security Operations Engineer, you will be a pivotal architect in enhancing our Security Operations Center (SOC), transitioning from reactive monitoring to proactive defense strategies. Collaborating closely with the Security Operations Manager, you will oversee the integration of advanced security systems while mentoring a high-performance team. Your goal is to connect the intricate threat landscape with scalable technical solutions, safeguarding our global data infrastructure.WHAT YOU'LL DOArchitect and Onboard Security Infrastructure: Develop strategies for integrating new security systems and services, ensuring seamless data ingestion into our operations to enhance visibility.Drive SOC Maturity and Integration: Assess and optimize our current toolstack, including IDS/IPS, EDR, and SIEM, to automate workflows and enhance Mean Time to Respond (MTTR).Lead Incident Response and Threat Intelligence: Guide the detection and mitigation of active threats using GenAI and advanced forensics to minimize business impact.Operationalize Security Policy: Convert abstract security requirements into effective technical controls across Linux and Cloud (AWS) environments, aligning our security roadmap with global business objectives.Innovate through Automation: Employ a DevOps approach to create custom scripts (Python, PowerShell) and utilize containerization (Docker) to streamline tasks and boost team efficiency.WHAT YOU BRINGDeep Technical Proficiency in Defense: Extensive experience in managing enterprise security technologies such as UTM firewalls, network-based threat detection, and cloud platforms.Automation and Engineering Mindset: Demonstrated capability to automate intricate security tasks and processes.

Veeam is recognized as the Data and AI Trust Company, dedicated to empowering organizations to fully comprehend, secure, and fortify their data and AI systems, thereby facilitating the safe and scalable integration of AI technologies. As a leader in data resilience and security posture management, Veeam is designed to address the convergence of identity, data, security, and AI risk. With our headquarters in Seattle and a presence in over 30 countries, Veeam safeguards the operations of over 550,000 clients globally, who rely on us to maintain operational continuity. We invite you to join us as we courageously advance together, fostering growth, learning, and making a significant impact for some of the world’s most prominent brands.About the RoleAs a C++ Developer at Veeam, you will have the exciting opportunity to join one of our high-impact teams, contributing to a range of products and features. Throughout the recruitment process, we will align your interests and expertise with the team and project where your contributions can create the most significant impact.Your Responsibilities Will IncludeOptimizing and finalizing existing functionalities of the VBR product, focusing on application-aware processing and database plugins.Conducting performance analysis and profiling.Executing diagnostics and resolving bugs through log analysis and process dumps.Implementing network protocols between system components.Technologies We UtilizeC++ 17, C#, Windows/Linux, STL, Boost

Join Veeam, the trusted leader in Data and AI solutions, dedicated to helping organizations secure, understand, and make the most of their data and AI capabilities. With our headquarters in Seattle and a presence in over 30 countries, Veeam safeguards the operations of over 550,000 clients worldwide, empowering them to achieve safe AI at scale. As we continue our journey of growth and innovation, we invite you to make a meaningful impact with us.About the RoleWe are seeking a motivated Junior C# Developer to contribute to the development of Veeam Backup and Replication and its extensions.What You’ll DoDesign and implement REST APIs for Veeam Backup & Replication.Develop new features and maintain existing functionalities.Participate in the design and development of product components and architecture.Technologies We Use:C#, .NET 10, Windows/Linux, MS SQL, PostgreSQL, Multithreading

Join Veeam Software as a Software Developer in Test, where you will play a critical role in enhancing the quality of our software products. We are looking for talented individuals proficient in Python or C# to design, implement, and maintain automated test frameworks. Your expertise will help ensure our software meets the highest standards of quality and reliability.

At Veeam, we are the trusted leaders in Data and AI, dedicated to empowering organizations in understanding, securing, and fortifying their data and AI capabilities. As pioneers in data resilience and security posture management, we thrive at the intersection of identity, data, security, and AI risk management. Our headquarters in Seattle is complemented by a presence in over 30 countries, safeguarding the operations of more than 550,000 customers globally who rely on us to keep their businesses thriving. Join our journey as we move forward together, fostering growth, learning, and making significant contributions for some of the most renowned brands worldwide.About the RoleAs an Application Security Engineer specializing in Offensive Testing, you will spearhead penetration testing and Dynamic Application Security Testing (DAST) for our Veeam Data Cloud products. You will leverage Burp Suite and advanced web/API testing methodologies to uncover real, exploitable vulnerabilities, prioritize risks, and collaborate with engineering teams to ensure effective remediation.Your role will also involve enhancing testing tools and processes to foster repeatability and assist teams in preventing recurring vulnerabilities, particularly in areas such as authentication, authorization, session management, and tenant isolation.What You’ll DoLead offensive testing initiatives: strategize testing scope, depth, and frequency; produce clear reports and reusable playbooks.Conduct extensive manual penetration testing: focus on web applications and APIs, emphasizing authentication/authorization, multi-tenant boundaries, and critical workflows; create realistic attack simulations by chaining issues.Employ Burp Suite daily: validate and reproduce findings utilizing advanced features; maintain repeatable scopes, macros, and authenticated flows.Execute and enhance DAST: perform authenticated scans, fine-tune processes to minimize false positives, and collaborate with CI/platform teams to scale scanning and manage credentials.Drive remediation efforts: generate high-quality reports, partner with engineers for fixes and retesting, and prevent regressions; ensure findings are categorized appropriately with designated severity and SLAs.Contribute to long-term security improvements: identify recurring patterns and aid teams in mitigating them through established standards, libraries, platform controls, and input in threat modeling/design reviews.